Alternative to Melamine as a Fire Retardant

Summary

We are searching for an alternative to Melamine as a fire retardant. A proposal has been put forward to harmonise the classification of this substance as carcinogenic under REACH/CLP and so we would like to hear of any alternatives available.

Description

We are searching for an alternative to Melamine as a fire retardant. A proposal has been put forward to harmonise the classification of this substance as carcinogenic under REACH/CLP and so we would like to hear of any alternatives available.

Melamine decomposes and releases nitrogen gas when burned, this can act as a blowing agent to form a foam below the intumescent layer. This increases the volume and improves stability, protecting the underlying fuel. In addition to this, the decomposition of melamine is endothermic, reducing the heat of the system. It is usually used in combination with another phosphorus source e.g. ammonium polyphosphate as the synergistic properties will result in improved intumescence and fire retardency.